ICSE Class 10 Ammonia (NH3) — Mock Test (2027)
Free online mock test for Ammonia (NH3) (ICSE Class 10 Chemistry) — 20 competency-based questions based on the latest CISCE 2027 syllabus, with instant marking. Try the samples below, then take the full test free.
What to expect: This mock test covers key concepts from the Ammonia (NH3) chapter — including application-based and competency-focused questions aligned with how ICSE actually sets the paper.
Tip: Attempt without notes first to identify gaps, then review explanations for any wrong answers. Retake after a few days for best retention.
Sample questions
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1.Complete and balance the following equation: $\mathrm{NH_4OH} + \mathrm{HNO_3} \longrightarrow \longrightarrow + \longrightarrow$
- A.$\mathrm{NH_4OH} + \mathrm{HNO_3} \longrightarrow \mathrm{NH_4NO_2} + \mathrm{H_2O}$
- B.$\mathrm{NH_4OH} + \mathrm{HNO_3} \longrightarrow \mathrm{NH_4NO_3} + \mathrm{H_2O}$
- C.$\mathrm{NH_4OH} + \mathrm{HNO_3} \longrightarrow \mathrm{N_2O} + 3 \mathrm{H_2O}$
- D.$\mathrm{NH_4OH} + \mathrm{HNO_3} \longrightarrow \mathrm{NO_2} + 2 \mathrm{H_2O}$
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2.Assertion : Ammonium hydroxide is alkaline in nature. Reason : Ammonium hydroxide dissociates in water to produce hydroxyl ions. (a) Both assertion and reason are true and reason is the correct explanation of assertion. (b) Both assertion and reason are true, but reason is not the correct explanation of assertion. (c) Assertion is true, but reason is false. (d) Assertion is false, but reason is true.
- A.Both assertion and reason are true and reason is the correct explanation of assertion.
- B.Both assertion and reason are true, but reason is not the correct explanation of assertion.
- C.Assertion is true, but reason is false.
- D.Assertion is false, but reason is true.
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3.A colourless gas having pungent irritating odour gives dense white fumes with conc. HCl and turns Nessler's reagent brown. The colourless gas is
- a.NH₃
- b.H₂
- c.NH₄Cl
- d.Cl₂
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4.Which of the following represents the balanced equation for the reaction between ammonia and carbon dioxide to form urea, along with the correct conditions required for this reaction?
- A.NH₃ + CO₂ → NH₂CONH₂ + H₂O at 100°C and 100 atm pressure
- B.2 NH₃ + CO₂ → NH₂CONH₂ + H₂O at 150°C and 150 atm pressure
- C.NH₃ + 2 CO₂ → NH₂CONH₂ + H₂O at 200°C and 200 atm pressure
- D.2 NH₃ + CO₂ → NH₂CONH₂ + 2 H₂O at 150°C and normal atmospheric pressure
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5.Assertion : Ammonia is a polar covalent compound. Reason : Ammonia has a trigonal pyramidal structure due to the lone pair of electrons on nitrogen. (a) Both assertion and reason are true and reason is the correct explanation of assertion. (b) Both assertion and reason are true, but reason is not the correct explanation of assertion. (c) Assertion is true, but reason is false. (d) Assertion is false, but reason is true.
- A.Both assertion and reason are true and reason is the correct explanation of assertion.
- B.Both assertion and reason are true, but reason is not the correct explanation of assertion.
- C.Assertion is true, but reason is false.
- D.Assertion is false, but reason is true.
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